As courts continue to adjudicate President Donald Trump’s executive orders related to immigration and employment, a new study from a University of Illinois expert who studies immigration law and labor issues says presidential powers over immigration have been significantly hamstrung by the judicial branch.

Research by Michael LeRoy, a professor of labor and employment relations at Illinois, indicates that plaintiffs won all or part of 89 percent of the rulings in cases that consider Trump’s immigration orders that affect employment relationships.

“The results suggest that President Trump has overreached in his use of executive immigration powers, violating statutory and constitutional requirements,” LeRoy said. “Most of President Trump’s immigration orders that affect employment fall outside the Constitution’s Article II powers over conducting foreign affairs. The net result is that by overreaching with respect to his constitutional authority, President Trump has precipitated new legal precedents that function to limit his executive powers, thereby resulting in a significant erosion of presidential authority over immigration.”

Read the full story at news.illinois.edu.